Search for periodicities in galactic cosmic rays,sunspots and coronal index before arrival of relativistic protons from the sun |
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| Authors: | J. A. Pérez-Peraza V. M. Velasco-Herrera J. Zapotitla L. I. Miroshnichenko E. V. Vashenyuk |
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| Affiliation: | 1.Instituto de Geofísica,Universidad Nacional Autónoma de México,México,México;2.N.V. Pushkov Institute Terrestrial Magnetism, Ionosphere and Radio Wave Propagation (IZMIRAN),Russian Academy of Sciences (RAS),Troitsk, Moscow Region,Russia;3.D.V. Skobeltsyn Institute of Nuclear Physics (SINP),M.V. Lomonosov Moscow State University,Moscow,Russia;4.Polar Geophysical Institute,RAS,Apatity, Murmansk Region,Russia |
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| Abstract: | Using different approaches and techniques of wavelet analysis we analyze variations (oscillations) of galactic cosmic rays, solar spot number, and coronal index of solar activity before ground level enhancements of solar cosmic rays. Obtained results are discussed in frames of recent ideas about periodicity phenomena in the photosphere, and corona of the Sun, interplanetary medium, and cosmic rays. |
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